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wall thermostat is there but i guess it doesnt actuslly function properly. Boiler must be timed so it turns on ..on its own. I want to know if this 428 model can allow heating to be turned on off whenever we desire manually even if it is set on timer. Plus i dont know to check/adjust...

Hi I have issues adjusting the heating on the valliant ecoplus 428 model boiler. I tried understanding the manual but adjusting the radiator heating temp on boiler doesnt turn on heating. I am new to this, can anyone help me turn it ON Right now info i button shows S.30 mode Is it...